The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 13, 1999
Filed:
Mar. 31, 1997
Junichi Hara, Ikeda, JP;
Tadanori Ryu, Ikeda, JP;
Ricoh Company Ltd., , JP;
Abstract
A quantization device includes a multiplying unit for multiplying one of n.times.n values of quantization matrix information by a selected scale factor so as to provide quantization basis information. The n.times.n values correspond to n.times.n pixels of a process block. These values are used as threshold values for quantization. A quantization operation unit for carrying out a quantization process on one of n.times.n orthogonal transformation coefficients uses the quantization basis information to provide a quantization coefficient, and a scale factor supplying unit for providing the noted one of the scale factors for the multiplying unit for using process location information which indicates a location in n.times.n matrix of the noted one of the n.times.n orthogonal transformation coefficients.